The Panda and Penguin updates modified Search engine marketing on Google fast. The former countered high page rankings as a consequence of unoriginal or weak-quality content, and also the latter introduced the “no-spamming” index, which punished high keyword density and low-good quality backlinks. The meta description is an HTML tag https://donovanauojb.bcbloggers.com/22467008/the-5-second-trick-for-keyword-research-tool